From WikiLeaks

The CRS is a Congressional "think tank" with a staff of around 700. Reports are commissioned by members of Congress on topics relevant to current political events. Despite CRS costs to the tax payer of over $100M a year, its electronic archives are, as a matter of policy, not made available to the public.

Individual members of Congress will release specific CRS reports if they believe it to assist them politically, but CRS archives as a whole are firewalled from public access.

This report was obtained by Wikileaks staff from CRS computers accessible only from Congressional offices.

This report discusses the evolution and scope of the arms and technology supply relationships between Iran and its arms and technology suppliers-primarily Russia, China, and North Korea. A separate section discusses other countries that have supplied arms or weapons of mass destruction technology to Iran, although on a much small scale than Russia, China, or North Korea.